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Poster: billbarstad Date: Jun 19, 2009 6:42am
Forum: feature_films Subject: Re: divx and avi

An AVI file (.avi) containing video encoded in DivX is not a DivX file (.divx). A AVI file with video encoded in MPEG4 is not a MPEG4 file (.mp4). Those named on individual web pages are for container formats not video codecs.

See this: http://www.archive.org/about/faqs.php#235

You'll notice that AVI is not among the file formats listed as a preferred file format.

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Poster: elmagno Date: Jun 19, 2009 8:37am
Forum: feature_films Subject: Re: divx and avi

Divx has a history of sucking out loud, including spyware and adware. Worse, it is proprietary. Open source xvid (not to mention x264) is proven better quality.

As for getting the terms right, in all these years I have yet to see archive.org ever once spell cinepak correctly.


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Poster: jonc Date: Jun 19, 2009 9:09am
Forum: feature_films Subject: Re: divx and avi

"Worse, it is proprietary."

I have to agree with that. DivX is widely supported at this time, and there's generally no disputing the quality. But what happens when DivX, Inc. stops doing business? There will be superior codecs replacing it, if there aren't already, and who would be motivated to continue its development and support? There will probably be hundreds of videos in these archives that are virtually worthless.

Hopefully, the OGG video codec will address this.


This post was modified by jonc on 2009-06-19 16:09:11

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Poster: billbarstad Date: Jun 19, 2009 9:45am
Forum: feature_films Subject: Re: divx and avi

I have no love of the DivX format, but the AVI format doesn't support modern B-frame compression, it requires hacks to support subtitles, which can break compatibility, and it only uses square pixels, which means movie frames appear stretched when they are played back.

Probably the only reason AVI is still around is because of its use on file-sharing sites and the preponderance of the Windows OS.

Maybe both container formats will disappear some day (I sure hope Windows does too). If a file type becomes obsolete, IA can re-encode files to another format.

For now, I prefer MPEG-4 files, but sometimes DivX is my only option.

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Poster: elmagno Date: Jun 19, 2009 8:00pm
Forum: feature_films Subject: Re: divx and avi

I prefer mp4 files rendered with x264. This is an up to date combination that is also very efficient. I read the other day that it takes about 15 coal-fired power plants to power the internet. In this regard an x264 file of, say, 500mb has all the quality of a 700mb divx file. Convert the 500 and 700 megabytes to pounds or tons and it's easy to see the absolute savings--with no sacrifice of quality.

This post was modified by elmagno on 2009-06-20 02:55:37

This post was modified by elmagno on 2009-06-20 03:00:19

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Poster: guyzilla Date: Jun 20, 2009 10:42am
Forum: feature_films Subject: Re: divx and avi

Ok, I can see that there's a lot of folks out there who aren't big fans of the DivX format. Taking the precaution of wrapping myself in plastic to shield myself from any rotten tomatoes that I'm likely to be pelted with, I have one or two points I'd like to make in it's defence. One, I have found that th resolution of most files in that format is pretty decent for their size. Also, many dvd players that you buy nowadays will play cds with DivX files as they are, so you can download it, burn it, and watch it on your tv. It's just a matter of what files you prefer to download. I'm just thankful that there are so many patrons here that go to the trouble to upload their movies and make them available here for everyone to enjoy. After all, if you see a movie here that you want, all you have to do is download it, burn it on a dvd, and it's yours forever for free. The guy who put it up, chances are he or she had to go look for it and buy it, then put it up, so I think a big thank you is in order for these guys, no matter what the quality or format their files are.

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Poster: Laraine_Lynn Date: Aug 12, 2009 11:35am
Forum: feature_films Subject: Re: divx and avi

I'm not familiar at all with burning video files, I've only made data CDs.

By burn to DVD (with .avi files)to you mean just a simple file copy? Or do I need to use CD/DVD Burning software to 'burn' files as iso image or something along that line? I have a new dvd player that plays DivX or Xdiv files of .avi file type (DivX3.11, DivX4, XviD, or DivX5--only certain compressions). I'm trying to understanding the technology but I have a way to go and some information seems confusing. For example, one site said that if you use Nero, you have to write video files as data otherwise Nero will try to uncompress the files.

Thanks for any help you can provide.

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Poster: guyzilla Date: Aug 13, 2009 10:22am
Forum: feature_films Subject: Re: divx and avi

I'm not too clear on the differences of video file formats myself, all I know is if you try to play a cd on a DivX supported dvd player and one of the files on that disc is not DivX, then that file won't play, and as far as I'm concerned that's all I need to know. As far as what was said about Nero, all it does is it takes files of other formats, like mpegs or wmvs, and converts them into vob files, which are the files found on dvds. I've been using Nero for a few years now and found it pretty easy to use. Don't let the terminology confuse you. Just make your cds or dvds and have fun with it.

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Poster: Laraine_Lynn Date: Sep 18, 2009 10:08pm
Forum: feature_films Subject: Re: divx and avi

Thanks for the info. I have some discs of Nero laying around. One's at least fairly recent, so I will install it and give it a whirl.

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Poster: jonc Date: Jun 20, 2009 8:08pm
Forum: feature_films Subject: Re: divx and avi

The comments are about DivX itself, not the people uploading it. You have good points about the size and player support, but I don't know if it's supported by the newer HD players. Does anyone here use DivX on a HD player?

This post was modified by jonc on 2009-06-21 03:08:39

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Poster: guyzilla Date: Jun 20, 2009 6:51pm
Forum: feature_films Subject: Re: divx and avi

Thank you, jonc. It wasn't my intent to say otherwise. I reread my post and it does kind of sound like I had a bug in my hat. I didn't mean for it to come out the way it did.

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Poster: billbarstad Date: Jun 20, 2009 1:37pm
Forum: feature_films Subject: Re: divx and avi

DivX is superior to AVI in all respects except one. To produce .divx files you need to fork over $20. I have it, so I use it. I'd rather fill a DVD with .divx files than .avi files any day.

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Poster: guyzilla Date: Jun 20, 2009 1:57pm
Forum: feature_films Subject: Re: divx and avi

To me they're all good, except maybe OGG files. I'm not saying those or good or bad really, but I just can't use them with what I got.

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Poster: IanKoro Date: Jun 20, 2009 6:19am
Forum: feature_films Subject: Re: divx and avi

Well, no, it's not, but when I download a file called "movie.avi", and it's labeled as "divx", I don't think that's someone making a mistake. The label seems to indicate the encoding as often as anything.

As for its problems... Xvid is probably significantly better quality, and free, but it's not like the adware issue has mattered for something like 5 years (not that anyone actually uses the DivX player anymore anyways, do they?)

Come to think of it though, it would be nice to see some kind of standardization on the archive as far as formats.

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Poster: guyzilla Date: Jun 20, 2009 8:34pm
Forum: feature_films Subject: Re: divx and avi

It's funny how something to do with computers can get to seem prehistoric in a few short years.

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Poster: cosmicolada Date: Aug 13, 2009 10:43am
Forum: feature_films Subject: Re: divx and avi

Oh hey, tell me about it! I should be rushing to get my film shot before all the video standards change again. I still dislike watching widescreen movies, because to me, 1.33:1 (or 4x3) is the only "natural" screen image ratio.